明朝在东北地区屯田兴垦,主要种植粮食以保障兵食,很少栽培商品交换性质的经济作物。有清一代,东北地区棉、麻、烟、靛等经济作物与蚕丝生产得到了较大的发展,本文旨在探讨其地域分布及扩展的特征与形成原因。 The Ming dynasty revitalized the Tuntian area in the northeast region. It mainly grew grain to protect its soldiers and seldom cultivated cash crops of exchangeable nature. There is a generation of Qing Dynasty. The economic crops such as cotton, hemp, tobacco, indigo and other silkworms in northeast China have been greatly developed. The purpose of this paper is to explore the characteristics and causes of their geographical distribution and expansion.